code: def tearDown(self):
      file_io.delete_recursively(self._dump_dir)
      super(ReconstructNonDebugGraphTest, self).tearDown()
  
imports: import tempfile
  from tensorflow.core.framework import graph_pb2
  from tensorflow.core.protobuf import config_pb2
  from tensorflow.core.protobuf import rewriter_config_pb2
  from tensorflow.python.client import session
  from tensorflow.python.debug.lib import debug_data
  from tensorflow.python.debug.lib import debug_graphs
  from tensorflow.python.debug.lib import debug_utils
  from tensorflow.python.framework import constant_op
  from tensorflow.python.framework import ops
  from tensorflow.python.framework import test_util
  from tensorflow.python.lib.io import file_io
  from tensorflow.python.ops import cond
  from tensorflow.python.ops import math_ops
  from tensorflow.python.ops import variables
  from tensorflow.python.ops import while_loop
  from tensorflow.python.platform import test
  from tensorflow.python.training import gradient_descent
label_desc: Use image node_id 3 for calling the ReconstructNonDebugGraphTest obj's underlying member method code with example usage: obj.tearDown() without return types